It's every parent's nightmare. Your teenager gets heavily involved in drugs, and you don't even know it's happening.
In the first of our new series from Fixers - the campaign that helps young people make a difference - we meet teenager Jade Clement who says cannabis nearly ruined her school career, and cut her off from family and friends.
With government figures showing that nearly a third of young people have tried cannabis, and new research suggesting it may damage teenagers' brains, she's warning that the drug is no joke.
More top news
A minute's silence will be held across the UK at midday to remember the victims killed in the Tunisia beach attack a week ago.
Police said they were closing the investigation into who sold the model and TV presenter the drugs which killed her.
A nurse who is to be honoured with OBE for running an Ebola treatment unit has described the military operation in Sierra Leone as "scary".